Can hashmap store null values?
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List some applications of tree-data structure?
Why do we need arrays if all the operations that are performed on arrays can be performed on arraylist?
What is sorting and classifying?
Can a binary tree be empty?
In depth questions regarding the data structures and the Databases used in the Projects developed.
A lot of data structures related programs related to only trees and graphs, like the diameter of a tree, removing the loops in a graph etc.
Why is an array homogeneous?
which notations are used in evaluation of arithmetic expressions using prefix and postfix forms?
What is a priority queue?
What are different types of sorting techniques?
In an AVL tree, at what condition the balancing is to be done?
Which is better hashset or treeset?